But do they have a record of the reason you disabled it or did they just change a flag and lump you in with everyone else?

A bit more paranoid. If they do this tracking for porn, maybe in the future they add other types of content they want to track. I know it sounds silly but it's not like the data is going to go away and likely will only ever increase the amount of tracking. Sadly I know many people who see no issue with this.